Ok this might be the dumbest question.. but how many different window configurations on the front doors are there??

I have seen 4 door cherokees that have the vent windows that open.. and then there are the ones like mine where there is the "vent" part of the window, but they do not open..

on a 2 door I have seen them with out the little vent part, where the entire window goes down.. but did any 4 doors come like that??

one of the little complaints I have is that with my vent window (non-opening type) that the little section that does go down, is just about that much too short to rest my arm on.. you know what I mean.. its like I can fit my forearm on the ledge, but there is no place to rest my hand.. it has to either hang inside the window, or outside.. I can't just let my hand lay up on the ledge too...

Hmm.. Interesting.. its a shame that my doors are in really good shape... I guess when I get some body damage.. I will look into replacing mine with some 97+ doors... it would be nice to have a spot for my entire arm! the windows on the earlier XJ's are just too darn small...